10/05 AWB8230-1541GB
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Appendix
Technical data
General technical data of the DF51
The table below lists the technical data for all DF51 frequency
inverters.
DF51
Protection class according to EN 60529 IP 20
Overvoltage category
III
Secondary side: Frequency range
0 to 400 Hz
With motors which are operated at rated frequencies above 50/60 Hz, the maximum
possible motor speed should be observed.
Frequency error limits (at 25 °C g10 °C)
• Digital reference value: g0.01 % of the maximum frequency
• Analog setpoint value: g0.1 % of the maximum frequency
Frequency resolution • Digital reference value: 0.1 Hz
• Analog reference value: Maximum frequency/1000
Voltage/frequency characteristic
Constant or reduced torque
Permissible overcurrent
150% for 60 seconds (once every 10 minutes)
Acceleration/deceleration time 0.1 to 3000 s at linear and non-linear characteristic
(applies also for second acceleration/deceleration time)
Inputs
Frequency setting Keypad Setting through keys or potentiometer
External
signals
• 0 to 10 VH, input impedance 10 kO
• 4 to 20 mA, load impedance 250 O
• Potentiometer f 1kO, recommended 4.7 kO
Clockwise/anticlockwise operation
(start/stop)
Keypad
Start key (for Start) and OFF key (for Stop); default setting = clockwise operation
External
signals
Digital control inputs programmable as FWD and REV
Digital control inputs programmable as
(not a complete list)
• FWD: Start/stop clockwise rotating field
• REV: Start/stop anticlockwise rotating field
• FF1 to FF4: Fixed frequency selection
• JOG: Jog mode
• AT: Use reference value 4 to 20 mA
• 2CH: Second time ramp
• FRS: Free run stop
• EXT: External fault message
• USP: Unattended start protection
• RST: Reset
• SFT: Software protection
• PTC: PTC thermistor input
• DB: DC braking active
• SET: Second parameter set active
• UP: Remote control, acceleration
• DWN: Remote access, deceleration
Outputs
Digital signalling outputs programmable as
(not a complete list)
• FA1/FA2: Frequency reached/exceeded
•OL: Overload
• AL: Fault
• RUN: Motor operational
• OD: PID deviation exceeded
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